Motor-vehicle axle construction



D. F. DOMIZI.

MOTOR VEHICLE AXLE CONSTRUCTION Sept. 39, 1930.

Filed Dec. 5, 1927 \N N w NN I o o o N m m\ Q ms: \x Qw O o R 3 PatentedSept. .30, 1930 DAVID F. DOMIZI, OF LIMA, OHIO,

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MOTOR-VEHICLE .AXiiE consuming I Application filed December 5, 1927.sri-a1 iv6b2eae9 Q This invention relates to axle constructions formotor vehicles andthe like and relates to splines formed thereon andproviding a spring perch to be secured to the axle with a surfacecomplementary to such splines, the

spring perch being clamped to the axle with the aforementionedcomplementary surface in contact with the splines. V

The above being among the ob ects of the r present invention the sameconsists in certain features of construction and combinations of partsto be hereinafter described with refer- "j ence to the accompanyingdrawings, and then claimed, having theabove and other objects in view.

In the accompatnying drawing which illustrates a suitable embodiment ofthe present invention,

Fig. 1, is a vertical sectional view taken centrally through a rear axlefora motor vehicle.

' the tread mill type, the action of which is. described inmyapplication for Letters Patent of the United States on motor vehicleIn the drawing I show the present invention in connection with avehiclerear axle of construction, filed on January 7, 1927, Serial No. 159,597,and in which the load carrying housing is rotatable relative to thewheel axle whereby when an obstruction or other unusual resistanceis metby the wheels the axle housing with the load carried thereby is causedto move forwardly and up with respect to the wheel axle whereby anincreased leverage is caused to act in'the same manner Fig; 2, is asectional, view taken on the line as in a tread mill to aid the wheelinovercdin;

ing the obstruction or resistance. r l a i As shown inthe drawing theconstruct'io includes awheel axle 10. to the outer end of which isrotatably secured on-the bearings 11 and 12a hub 13." A brake drum "14and a wheel 15v are secured to thehub 143 by means of a'bo'lt 16, cap 17and nuts l8. Non-rotata-i .AssIeNon To. sem- M6193, momrcms c mm bly,secured to the axle 10 by taper fitand'al key 19 is a supporting member20-whicl1 serves tosupport: the brake bands and-other braking mechanism(notshown) and for other purposes which will :be presently described. 1Y

I {The wheel 15 has secured thereto the rims 5l which in turn receivethe tires 52 The supporting 'memberw20 is provided with "an opening 21having .abushing22 in which is rotatably received the sleeve 23 whichais secured against rotation and. axial. movement inthe axle housing 24by thepin -25 'and 'nut26. 1 i

Rotatably received with the h0using 2et and sleeve 23 inthe bearings 27is an axle.

shaft 28 to theouter end of which is secured thepinion 29. An internalgear is secured to the hub 13 in meshing relationship with the pinion 29so that upon rotation of jshaft 28 the pinion'29 acting on the gear 30will cause rotation of the wheels. Thehousing24 immediatelyinwardly ofthe inner line of the tires 22 isprovided with a plurality ofaxiallyextending outwardly projecting splines 31 on... its exterior surface andextending circumferentially. ar undEthesameQ j A spring .perchisProvided-with-a central opening 32which is grooved as at33, whichgrooves are adapted to receive the splines .31' on the housing 24. The"perch is axially spliton the lower side into the opening 82 asat 34and'bolts 35 are provided through the split side in intersect ingrelationship with respect to the splines 33, nuts 36 being provided onthe bolts 35 for drawing the split 34- together and thereby.clamping;the perch secured to theho'us ing 24. The perch is providedwith integral arms 37 which extend horizontally outwardly from theportion which is received on the axle housing and then upwardly andinwardly over the wheel axle 10 over which they join to form a springseat 38 for the load carrying springs .39, the outer ends of which (notshown) are secured to the frame side members 40 of the vehicle chassisby conventional shackles or other suitable means. A clamping plate 41and U-bolts 42 and nuts 43 serve to secure the springs 39 against.movement to the seat 38. Resilient blocks such as 44 are supported bythe arm portions 37 in the path of movement of the wheel axle 10relative to the center of the axle 28 in order to cushion the blow ofthe wheel axle 10 against the arms 37 when the arms 37 act to limit theswinging movement of the axle housing relative to the center of thewheel axle 10.

It will be obvious that in constructions of this type the load carryingsprings 39 acting through the perches 37 serve to maintain the housing24 from rotating relative to the axle 28, this being necessary in orderto keep the differentialmechanism (not shown) carried by the axle 24 andthe propeller shaft (not shown) in alignment during swinging movement ofthe axle housing.

In view of the great leverage between the point or" connection of thespring perch to the axle housing'and the point of support for thesprings 39, an enormous strain is sometimes put on the connectionbetween the perch and the axle housing and the construction hereinprovided is such as to withstand such strains without liability ofdisplacement of the spring perch circumferentially of the axle housing.

Formal changes may be made in the-specific embodiment of the inventiondescribed without departing from the spirit or substance of the broadinvention, the scope of which is commensurate of the appended claims.

,What I claim is 1. In combination, a wheel axle, wheels mountedthereon, an axle housing supported from said wheel axle in eccentricrelationship in respect thereto and normally below the same, a' springperch secured to said axle housing and extending upwardly in spacedrelationship in respect to said wheel axle, and a load carrying springsecured to said perch above said wheel axle, said axle being providedwith a plurality of radially outwardly projecting splines and saidspring perch being provided with asurface complementary to the splinedportion of said housing and secured thereto. 7

2. In combination, a wheel axle, an axle housing supported fromsaidwheel axle in eccentric relationship thereto and normally positionedbelow the same, said axle housing being provided with a plurality ofaxiallyextending outwardly projecting splines dissaid housing.

DAVID F. DOMIZI.

